| Collector | Laegaard, S. |
| Number | 21858 |
| Collected with | M. Norsangsri, P. Pornpongrungrueng & S. Khoomrathok |
| Country | Thailand |
| Subpart | UBON RATCHATHANI |
| County | |
| Locality | Pha Tan Nat. Park, at Visitors Center |
| Coordinates | 15° 24' N 105° 31' E |
| Minimum elevation (m) | 215 |
| Maximum elevation (m) | 215 |
| Start date | 2001/10/28 |
| End date | 2001/10/28 |
| Family | Poaceae |
| Identification | Isachne miliacea Roth |
| Determined by | Veldkamp, J. 2003, on dubl. |
| Identification qualifier | |
| Field notes | On exposed rock shelf along trail to rock paintings |